Description
resource
pg_query ( resource connection, string query)
pg_query() returns a query result resource if
query could be executed. It returns FALSE on failure or if
connection is not a valid connection. Details about the error can
be retrieved using the pg_last_error()
function if connection is valid.
pg_query() sends an SQL statement to
the PostgreSQL database specified by the
connection resource. The
connection must be a valid connection that
was returned by pg_connect() or
pg_pconnect(). The return value of this
function is an query result resource to be used to access the
results from other PostgreSQL functions such as
pg_fetch_array().
Note:
connection is an optional parameter for
pg_query(). If
connection is not set, default
connection is used. Default connection is the last connection
made by pg_connect() or
pg_pconnect().
Although connection can be omitted, it
is not recommended, since it could be a cause of hard to find
bug in script.
Note:
This function used to be called pg_exec().
pg_exec() is still available for compatibility
reasons but users are encouraged to use the newer name.
See also pg_connect(),
pg_pconnect(),
pg_fetch_array(),
pg_fetch_object(),
pg_num_rows() and
pg_affected_rows().
